Course Grid Format (show contents)

I have Applied COURSE GRID format for the front page.I need to customize the GRID to show CONTENTS (or) SYLLABUS of the Course before taking a non-user into the LOGIN Page.

In the FRONTPAGE,As I have Displayed my COURSES in GRID FORMAT with a shortest description.I need a non user to check on the SYLLABUS (or) CONTENTS of the course before clicking the only button shown in the GRID format(i.e "Click to Enter this Course").

I need to customize the GRID for a popup or button showing the contents of a course.